KR0178253B1 - Button extension of keyphone - Google Patents

Abstract

The present invention is provided with 32 extension buttons that can be changed and set to be used in conjunction with the key phone telephone extension button extension of the key phone telephone that can be used as an extension and trunk line selection button provided in the key phone telephone itself An apparatus comprising: a simple switched telephone system having a plurality of telephones each having a unique extension number and a claim for providing a call and exchange function for these telephones; A transformer for impedance matching with the main device, a data transmitting / receiving means for transmitting and receiving data in a full-duplex manner, a DC / DC conversion means for supplying operating power of the entire device by dropping the voltage input from the main device, and an operation program thereof. A program storage means for storing, a key retrieval means for retrieving a button signal input by the user and outputting a predetermined result signal, a data storage means for temporarily storing the button data input by the user, and displaying an operation state for each line And a control means for controlling the originating and receiving function through communication with the main apparatus based on the line status display means and the result signal input from the key searching means.

Description

Button Expansion Device for Key Phone

1 is a block diagram showing the internal configuration of a general simple switched telephone system.

2 is a block diagram showing a button expansion device for a key-phone telephone according to Embodiment 1 of the present invention.

* Explanation of symbols for main parts of the drawings

10 main device 11 switch unit

12: trunk line trunk module 13: data transmission and reception unit

14: voice and data converter 16: program memory

17: Data memory 18: Battery backup circuit

19: control unit 20: key phone

21: audio portion 22: button portion

23: data transmission and reception unit 24: voice and data conversion unit

25 LCD display 26 Control unit

27: program memory 28: data memory

101: UDLT transformer 102: UDLT slave

103: DC / DC converter 104: microprocessor

105: program storage unit 106: data storage unit

107: custom IC 108: line status display

109: key search unit

The present invention relates to a simple switching telephone system, and in particular, having an extension button that can be changed and set, and by using it in conjunction with a key phone, the extension button is like an extension and trunk line selection button provided in the key phone. The present invention relates to a button expansion device of a keypad phone that can be used.

FIG. 1 is a main structural view showing a general simple switched telephone system, in which 10 is a main device, and 20 is a key phone telephone connected to the main device 10. In FIG.

In addition, on the main device 10 side, reference numeral 11 is a switch unit for switching connection between the telephone and the telephone or between the telephone and the trunk line under the control of the control unit 19 to be described later, and 12 is a simple switching system. It is a trunk line trunk module that connects a trunk line to a station subscriber when making a call for outbound call and connects it with an external trunk line and allows the subscriber to respond when an incoming call is made from the trunk line.

Further, reference numeral 13 denotes data coming from each key phone telephone, for example, a button signal from the key telephone telephone 20 according to a user's operation, and transmitted to the key telephone telephone 20 from the main apparatus 10 side, for example, an LCD display. Data transmission and reception unit for transmitting and receiving data, etc., 14 is a voice and data conversion unit for mixing or separating the voice signal and the data signal transmitted and received by the data transmission and reception unit 13.

In addition, reference numeral 16 is a program memory having a program storage unit 161, in which the operation program of the controller 19 is stored, and a password storage unit 162, in which a unique number of each key phone is stored. A data memory 18 in which process data is stored is a battery backup circuit for supplying power for holding data stored in this data memory 17 at power off.

Here, the data memory 17 is provided with a predetermined storage area for each key phone telephone.

In addition, reference numeral 19 denotes a control unit for controlling the entire main device 10, which controls the switch unit 11 to connect a telephone to a telephone or a telephone line and a trunk line, and at the same time a key phone telephone through the data transmission / reception unit 13. Outputs LCD display data corresponding to button signal input from (20), and in particular, manages registration data of data memory 17 corresponding to each key phone telephone to control, modify, input, delete, and inquire such data. Will be performed.

In addition, on the side of the key phone 20, reference numeral 21 is an audio unit for providing a call function to the user, including a handset, a microphone, a speaker, and the like, and number 22 is a plurality of buttons for the user to operate the key phone. The button unit 22 is provided with a plurality of numeric buttons (not shown), a fixed function button for executing a fixed function such as a surrogate response or a speakerphone function, and a user arbitrarily selects a CO line number for one button. And a variable function button for allowing an extension number, etc. to be set in correspondence, and a selection button for selecting an operation mode displayed on the LCD display section 25 to be described later.

In addition, reference numeral 23 denotes a button data corresponding to the selected button to the host device 10 when the user operates the button unit 22 under the control of the controller 23 to be described later. 10. A data transmission unit for receiving display data corresponding to the corresponding button input transmitted from 10), 24 mixes and transmits a voice signal and a data signal transmitted from the audio unit 21 and the data transmission / reception unit 23. In addition, the voice and data conversion unit for separating the voice signal and the data signal from the signal transmitted from the main device 10 side, 25 is an LCD display unit for displaying the data received by the data transmission and reception unit 23 to the user .

Reference numeral 26 denotes a control unit for controlling the entire apparatus, 27 denotes a program memory in which the operation program of the control unit 26 is stored, and 28 denotes a data memory for storing various processing data.

That is, in the simple switching telephone system described above, when the user operates the button unit 22 of the key phone telephone 20, the control unit 19 uses the data transmission / reception unit 23 and the voice and data conversion unit 24. When the data signal corresponding to the selection button is transmitted, and the input data signal is applied to the control unit 19 through the voice and data conversion unit 14 and the data transmission / reception unit 13 on the main device 10 side, the control unit 19 ) Transmits the display data corresponding to the input data signal to the key phone telephone 20 through the data transmission / reception unit 13 and the voice and data conversion unit 14, and executes a control operation corresponding to the selected button. do.

In addition, on the side of the key phone telephone 20, the control unit 26 controls the LCD display unit 25 based on the display data received from the main device 10 through the voice and data conversion unit 24 and the data transmission / reception unit 25. By driving, the information corresponding to the button selected by the user is displayed.

However, in the apparatus having the above-described configuration, the number of trunk lines and selection buttons to be provided in the button unit 22 of the key-phone telephone is limited. For example, a large building such as a hotel, a hospital, a corporate body, or a culture, art, In the simple switched telephone system used in large events related to academics, there was a lot of trouble to use multiple telephones in order to communicate internally with each other because of the number of keyphone telephones connected to the simple switched telephone system.

Accordingly, the present invention has been made in view of the above circumstances, and provides an extension and trunk line selection button that enables 32 change settings to a user who needs more buttons in addition to the buttons used in the key phone. The purpose of the present invention is to provide a button extension device for a key phone that allows the user to use it as a button on the key phone itself.

The button extension device of the key-phone telephone according to the present invention for achieving the above object is a simple switched telephone system having a plurality of telephones each having a unique extension number, and a claim for providing a call and exchange function for these telephones; To; A transformer for impedance matching with the main device, a data transmitting / receiving means for transmitting and receiving data in a full-duplex manner, a DC / DC conversion means for supplying operating power of the entire device by dropping the voltage input from the main device, and an operation program thereof. A program storage means for storing, a key retrieval means for retrieving a button signal input by the user and outputting a predetermined result signal, a data storage means for temporarily storing the button data input by the user, and displaying an operation state for each line And a control means for controlling the originating and receiving function through communication with the main apparatus based on the line status display means and the result signal input from the key searching means.

That is, according to the present invention having the above-described configuration, the existing key phone telephone can provide a key button expansion device having 32 buttons separately, thereby eliminating the troublesome operation of executing extension communication in the conventional key phone telephone.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings.

2 is a main configuration diagram showing a button expansion device for a key-phone telephone according to Embodiment 1 of the present invention.

In the drawing, reference numeral 101 denotes a UDLT (UDIVERTID DIGITAL LOOP TRANSCEIVER) transformer for impedance matching between the main unit 10 and DSS, and 102 denotes a dedicated dedicated to transmit and receive data in 160Kbps full duplex via a single pair line. As a chip UDLT slave (SLAVE), this UDLT slave 102 is paired with a UDLT master unit (not shown) of the main unit 10, and in the case of an extension, '2B +' which is a basic structure of an ISDN (Intergrated Service Digital Network). 1D 'format, among which the 20-bit burst of the key search information and line status message of the DSS through the D1 channel every 125 ms through the UDLT slave 102 in a ping-pong manner.

Also, reference numeral 103 denotes a DC / DC converter for supplying power required by the DSS. The DC / DC converter 103 is, for example, connected via a single pair line from the master unit (DSM: DIGITAL SUBSCRIBER MODULE) of the main apparatus. It is supplied with 24V DC and converted to, for example, DC +5 through a switching regulator through an unillustrated bridge diode, which is a polarity protection circuit, and 104 is a microprocessor as a control unit that collectively controls all button information generated in DSS.

In addition, reference numeral 105 is a program memory for storing instructions for a program of the DSS phone, 106 is a data storage unit (S-RAM) for storing variable data to an external memory, 107 is a variety of peripheral events generated in DSS easily As a custom IC designed to be implemented, this custom IC 107 is a decoder logic, latch, buffer, buffer, key scan, synchronization of serial data, line status indicator by LED Will perform the function of.

Further, reference numeral 108 is a status display unit for generating an enable signal (ENABLE SIGNAL) for controlling the latch circuit inside the custom IC 107 at address A000h_C000h to control the line status display operation by the 32 LEDs. Is a key scanning unit that retrieves the input state of 32 external buttons (not shown) provided outside of the DSS by reading the column column state by the direct addressing method at the address E000h_EE00h. × 7 COLUMN matrix.

Next, the operation of the device having the above configuration will be described.

That is, in the above-described configuration, when the UDLT transformer 101 of the button expansion device of the key-phone telephone and any port on the main device 10 side are connected in a single pair line, the DC / DC converter 103 first starts the main device ( 10) the + 5V voltage required by the button expansion device of the key-phone telephone is generated from the DC -24V input from the device to supply the operating power of each device, and the microprocessor 104 supplies the power through the custom IC 107. The key search unit 109 is controlled to periodically search for input of a key signal.

Subsequently, when the user detects a key signal by the key search unit 109 by operating 32 external buttons (not shown), the key search unit 109 generates a key signal corresponding to the corresponding key. The custom IC 107 then outputs the key signal to the microprocessor 104.

Subsequently, the microprocessor 104 temporarily stores the button signal retrieved and outputted by the key retrieval unit 109 in the data storage unit 106 until a new button signal is input.

Subsequently, the microprocessor 104 outputs and controls the key signal to the UDLT slave 102. The UDLT slave 102 transmits the input key signal according to a predetermined control signal using the transmission line TX. By outputting to the UDLT transformer 101, a user-specified key signal is output to the main device 10 through a single pair line.

Subsequently, when the key signal is input, the main device 10 transmits a call signal to a key phone telephone corresponding to the key signal, thereby enabling communication between stations.

In addition, this invention is not limited to the said Example, It can variously deform and implement within the range which does not deviate from the technical summary of this invention.

As described above, according to the present invention, a button that can be used in conjunction with a key phone phone is provided to a user who needs many buttons in addition to the button used in the key phone phone so that the user can use it in conjunction with the key phone phone. It is possible to realize a button expansion device for a key-phone telephone that can be used.

Claims (1)

A simple switched telephone system having a plurality of telephones each having a unique extension number and a claim for providing call and exchange functions for these telephones; A transformer for impedance matching with the main device, a data transmitting / receiving means for transmitting and receiving data in a full-duplex manner, a DC / DC conversion means for supplying operating power of the entire device by dropping the voltage input from the main device, and an operation program thereof. A program storage means for storing, a key retrieval means for retrieving a button signal input by the user and outputting a predetermined result signal, a data storage means for temporarily storing the button data input by the user, and displaying an operation state for each line And a control means for controlling an outgoing and incoming function through communication with the main device on the basis of a line status display means and a result signal input from the key retrieval means.